My ISP doesn't yet throttle downloads, yet in Eastern Canada it is the norm. I have a P2P connection which is very reasonably priced, with no restrictions placed on usage 'yet'.

Quote:

How internet providers manipulate and manage the speed of the internet for different types of data will be examined by Canada's telecommunications regulator during six days of hearings in Gatineau, Que., starting Monday.

Quote:

Some of the internet traffic control practices being put under the microscope are:

Throttling — that is, purposely slowing down the internet speeds of certain online applications such as peer-to-peer file transfers (P2P) relative to others.

Deep packet inspection, a technology used to examine traffic to figure out what type of data it is so it can be monitored and directed.